/**
 * Copyright (C) 2001-2017 by RapidMiner and the contributors
 * 
 * Complete list of developers available at our web site:
 * 
 * http://rapidminer.com
 * 
 * This program is free software: you can redistribute it and/or modify it under the terms of the
 * GNU Affero General Public License as published by the Free Software Foundation, either version 3
 * of the License, or (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
 * even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Affero General Public License for more details.
 * 
 * You should have received a copy of the GNU Affero General Public License along with this program.
 * If not, see http://www.gnu.org/licenses/.
*/
package com.rapidminer.tools.io;

import java.awt.Image;
import java.awt.datatransfer.DataFlavor;
import java.awt.datatransfer.Transferable;
import java.awt.datatransfer.UnsupportedFlavorException;
import java.io.IOException;


/**
 * This class wraps an {@link Image} and allows it to be copied to the system clipboard.
 * 
 * @author Marco Boeck
 */
public class TransferableImage implements Transferable {

	/** the image */
	Image image;

	/**
	 * Standard constructor.
	 * 
	 * @param image
	 */
	public TransferableImage(Image image) {
		this.image = image;
	}

	@Override
	public Object getTransferData(DataFlavor flavor) throws UnsupportedFlavorException, IOException {
		if (flavor.equals(DataFlavor.imageFlavor) && image != null) {
			return image;
		} else {
			throw new UnsupportedFlavorException(flavor);
		}
	}

	@Override
	public DataFlavor[] getTransferDataFlavors() {
		DataFlavor[] flavors = new DataFlavor[1];
		flavors[0] = DataFlavor.imageFlavor;
		return flavors;
	}

	@Override
	public boolean isDataFlavorSupported(DataFlavor flavor) {
		DataFlavor[] flavors = getTransferDataFlavors();
		for (int i = 0; i < flavors.length; i++) {
			if (flavor.equals(flavors[i])) {
				return true;
			}
		}
		return false;
	}

}
